CN218236334U - High-precision air-fuel ratio adjusting valve for burner - Google Patents
High-precision air-fuel ratio adjusting valve for burner Download PDFInfo
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- CN218236334U CN218236334U CN202222081830.4U CN202222081830U CN218236334U CN 218236334 U CN218236334 U CN 218236334U CN 202222081830 U CN202222081830 U CN 202222081830U CN 218236334 U CN218236334 U CN 218236334U
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Abstract
The utility model relates to an air-fuel ratio control valve for nozzle of high accuracy, its characterized in that: comprises an upper valve body and a lower valve body connected with the bottom end of the upper valve body; a wind-proof diaphragm is arranged at the joint of the upper valve body and the lower valve body; a pressed plate is arranged at the top of the wind isolation diaphragm; the two ends of the upper valve body are respectively provided with a gas inlet and a gas outlet; a fuel gas channel communicated with the fuel gas inlet and the fuel gas outlet is arranged in the upper valve body; the top end of the gas channel is provided with a valve for controlling the output pressure of the gas outlet, and the middle end of the gas channel is provided with an execution diaphragm; a lifting rod is arranged in the middle of the gas channel along the axis; the bottom end of the lifting rod is provided with a tension spring; the lifting rod is connected with the wind isolation diaphragm and the execution diaphragm. The utility model discloses an adjusting air valve changes air control pressure, and the corresponding automatic power that changes the gas pressure and adjust the nozzle of proportional control valve, and control accuracy is high.
Description
Technical Field
The utility model relates to an air-fuel ratio control valve for nozzle of high accuracy belongs to nozzle governing valve technical field.
Background
The air-fuel ratio regulating valve receives an air pressure regulating signal through a pressure guide pipe connected to an air pipeline, so that the constant ratio of air to gas proportional valve outlet pressure Pa to air control pressure PL 1 is realized, the air control pressure is changed through regulating an air valve, and accordingly, the power of a burner is regulated by correspondingly changing the gas pressure in a self-operated mode. The air-fuel ratio regulating valve on the market at present is inaccurate in ratio control, is not convenient for workers to analyze and control combustion, and directly causes insufficient combustion when the gas and the combustion-supporting gas are mixed unevenly, thereby causing serious waste of resources and energy.
Therefore, how to provide a high-precision air-fuel ratio adjusting valve for a burner is the research object of the present invention.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the technology, the utility model provides a high-precision air-fuel ratio regulating valve for a burner, which changes air control pressure by adjusting an air valve, and the power of the burner is adjusted by correspondingly and automatically changing gas pressure through the ratio regulating valve; the proportional control valve is designed as a valve component actuated by a vibrating membrane, the balance can be sensitively adjusted when the pressure is close to zero, the gas flow is started by the differential pressure flow of the vibrating membrane, the gas is conveyed under the accurate pressure, and the control precision is high.
For solving the prior art problem, the utility model discloses the technical scheme who adopts is:
a high accuracy is air-fuel ratio governing valve for nozzle which characterized in that: comprises an upper valve body and a lower valve body connected with the bottom end of the upper valve body; a wind-proof diaphragm is arranged at the joint of the upper valve body and the lower valve body; a pressed plate is arranged at the top of the wind isolation diaphragm; the two ends of the upper valve body are respectively provided with a fuel gas inlet and a fuel gas outlet; a fuel gas channel communicated with the fuel gas inlet and the fuel gas outlet is arranged in the upper valve body; the top end of the gas channel is provided with a valve for controlling the output pressure of the gas outlet, and the middle end of the gas channel is provided with an execution diaphragm; a lifting rod is arranged in the middle of the fuel gas channel along the axis; the bottom end of the lifting rod is provided with a tension spring; the lifting rod is connected with the wind isolation diaphragm and the execution diaphragm.
Furthermore, a large plug is arranged at the top end of the upper valve body; and a small plug is arranged at the bottom end of the lower valve body.
Furthermore, the two ends of the lower valve body are communicated with a pressure measuring nozzle.
Furthermore, two groups of pressure gauges are arranged outside the upper valve body; each group of pressure gauges is respectively and correspondingly connected with the gas inlet and the gas outlet.
The beneficial effects of the utility model are that: the air control pressure is changed by adjusting the air valve, and the power of the burner is adjusted by correspondingly and automatically changing the gas pressure by the proportional regulating valve; the proportional control valve is designed as a valve component actuated by a vibrating membrane, the balance can be sensitively adjusted when the pressure is close to zero, the gas flow is started by the differential pressure flow of the vibrating membrane, the gas is conveyed under the accurate pressure, and the control precision is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the upper valve body of the present invention.
Fig. 3 is an installation schematic diagram of the pressure gauge of the present invention.
Wherein: the air valve comprises an upper valve body 1, a lower valve body 2, an air isolating diaphragm 3, a pressure receiving plate 4, a gas inlet 5, a gas outlet 6, a gas channel 7, an air valve 8, an execution diaphragm 9, a lifting rod 10, a tension spring 11, a large plug 12, a small plug 13, a pressure measuring nozzle 14 and a pressure gauge 15.
Detailed Description
In order to make the technical solution of the present invention more understandable to those skilled in the art, the present invention is further analyzed with reference to fig. 1-3.
As shown in fig. 1-2, a high-precision air-fuel ratio regulating valve for a burner is characterized in that: comprises an upper valve body 1 and a lower valve body 2 connected with the bottom end of the upper valve body 1; a wind-proof diaphragm 3 is arranged at the joint of the upper valve body 1 and the lower valve body 2; a pressed plate 4 is arranged at the top of the wind isolation diaphragm 3; two ends of the upper valve body 1 are respectively provided with a fuel gas inlet 5 and a fuel gas outlet 6; a gas channel 7 communicated with the gas inlet 5 and the gas outlet 6 is arranged in the upper valve body 1; the top end of the gas channel 7 is provided with a valve 8 for controlling the output pressure of the gas outlet 6, and the middle end is provided with an execution diaphragm 9; a lifting rod 10 is arranged in the middle of the gas channel 7 along the axis; the bottom end of the lifting rod 10 is provided with a tension spring 11; the lifting rod 10 is connected with the wind isolation diaphragm 3 and the execution diaphragm 9.
In this embodiment, preferably, a large plug 12 is disposed at the top end of the upper valve body 1; and a small plug 13 is arranged at the bottom end of the lower valve body 2.
In this embodiment, preferably, two ends of the lower valve body 2 are communicated with a pressure measuring nozzle 14.
In this embodiment, preferably, as shown in fig. 3, two sets of pressure gauges 15 are arranged outside the upper valve body 1; each group of pressure gauges 15 are respectively and correspondingly connected with the gas inlet 5 and the gas outlet 6.
The utility model discloses a theory of operation: the proportional control valve is connected with an air regulating valve body through a pulse line, the air control pressure is changed by regulating the air valve, and the proportional control valve correspondingly and automatically changes the gas pressure to regulate the power of the burner; the proportional control valve is designed as a valve component actuated by a vibrating membrane, the balance can be sensitively adjusted when the pressure is close to zero, the gas flow is started by the differential pressure flow of the vibrating membrane, the gas is conveyed under the accurate pressure, and the control precision is high. Specifically, the control pressure is changed by adjusting the air valve, the control pressure is transmitted to the execution diaphragm 9 of the proportional control valve through a pulse line, and the lifting rod 10 is slightly lifted through the vibration of the execution diaphragm 9, so that the size of the gap between the valve 8 and the gas channel 7 is adjusted (the gas passes through the gap between the valve 8 and the gas channel 7 and is output to the burner from the gas outlet 6), the gas output pressure of the gas outlet 6 is controlled, and the power of the burner is adjusted.
The technical solutions provided by the present application are introduced in detail above, and the principles and embodiments of the present application are explained in this document by applying embodiments, and the descriptions of the above embodiments are only used to help understand the method and its core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (4)
1. A high accuracy is air-fuel ratio governing valve for nozzle which characterized in that: comprises an upper valve body and a lower valve body connected with the bottom end of the upper valve body; a wind-proof diaphragm is arranged at the joint of the upper valve body and the lower valve body; a pressed plate is arranged at the top of the wind isolation diaphragm; the two ends of the upper valve body are respectively provided with a gas inlet and a gas outlet; a fuel gas channel communicated with the fuel gas inlet and the fuel gas outlet is arranged in the upper valve body; the top end of the gas channel is provided with a valve for controlling the output pressure of the gas outlet, and the middle end of the gas channel is provided with an execution diaphragm; a lifting rod is arranged in the middle of the gas channel along the axis; the bottom end of the lifting rod is provided with a tension spring; the lifting rod is connected with the wind isolation diaphragm and the execution diaphragm.
2. The high-precision air-fuel ratio regulating valve for the burner of claim 1, wherein: the top end of the upper valve body is provided with a large plug; and a small plug is arranged at the bottom end of the lower valve body.
3. The high-precision air-fuel ratio regulating valve for the burner of claim 1, wherein: and the two ends of the lower valve body are communicated with pressure measuring nozzles.
4. The high-precision air-fuel ratio regulating valve for the burner of claim 1, wherein: two groups of pressure gauges are arranged outside the upper valve body; each group of pressure gauges is respectively and correspondingly connected with the gas inlet and the gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222081830.4U CN218236334U (en) | 2022-08-09 | 2022-08-09 | High-precision air-fuel ratio adjusting valve for burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222081830.4U CN218236334U (en) | 2022-08-09 | 2022-08-09 | High-precision air-fuel ratio adjusting valve for burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218236334U true CN218236334U (en) | 2023-01-06 |
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ID=84679407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222081830.4U Active CN218236334U (en) | 2022-08-09 | 2022-08-09 | High-precision air-fuel ratio adjusting valve for burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218236334U (en) |
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2022
- 2022-08-09 CN CN202222081830.4U patent/CN218236334U/en active Active
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